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Honda CB750 CB550 CB500 CB450 35mm front fork tube bolt with o-ring 90123-300-000
Corrected parts fiche reference for SKU 29-6013
Honda CB750 CB550 CB500 CB450 35mm front fork tube bolt with o-ring 90123-300-000
Honda CB750 CB550 CB500 CB450 35mm front fork tube bolt with o-ring 90123-300-000
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60-day returnsEligible unused parts Free ground shippingUSA & Canada over $50
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Honda CB750 CB550 CB500 CB450 35mm front fork tube bolt with o-ring 90123-300-000

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Load image into Gallery viewer, Honda CB750 CB550 CB500 CB450 35mm front fork tube bolt with o-ring 90123-300-000
Load image into Gallery viewer, Corrected parts fiche reference for SKU 29-6013
Load image into Gallery viewer, Honda CB750 CB550 CB500 CB450 35mm front fork tube bolt with o-ring 90123-300-000
Load image into Gallery viewer, Honda CB750 CB550 CB500 CB450 35mm front fork tube bolt with o-ring 90123-300-000
5.0 ( 1 review)

Honda CB750 / CB550 / CB500 / CB450 35mm Front Fork Tube Bolt with O-Ring ~ Replaces Honda OEM 90123-300-000

29-6013
$17.95 USD

Sold individually

In stock Usually ships the same or next business day
Check model fitment View fitment
Questions about this part? Contact us 4.8/5 1,329 store reviews
Secure checkoutProtected payment
60-day returnsEligible unused parts Free ground shippingUSA & Canada over $50
Browse all parts

1 product reviews

Honda CB750 / CB550 / CB500 / CB450 35mm Front Fork Tube Bolt with O-Ring ~ Replaces Honda OEM 90123-300-000

Honda CB750 / CB550 / CB500 / CB450 35mm Front Fork Tube Bolt with O-Ring ~ Replaces Honda OEM 90123-300-000
$17.95 USD
Description

This aftermarket 35mm front fork tube bolt is used as the top cap/bolt on compatible Honda CB 35mm fork tubes. It replaces Honda OEM 90123-300-000 and includes the O-ring, so you are not reusing a flattened or cracked old seal when the cap is removed.

Key Features

  • Aftermarket replacement for Honda OEM 90123-300-000
  • Includes O-ring
  • 35mm front fork tube bolt / fork cap
  • M28 x 1.5 thread pitch
  • Sold each
  • Usually 2 required per motorcycle

Fitment / Compatibility

  • Honda CB750K (1969-1978)
  • CB750F (1975-1978)
  • CB750A (1976-1978)
  • CB550K (1974-1978)
  • CB550F (1975-1977)
  • CB500T (1975-1976)
  • CB450K (1970-1971)

Buyer Notes

We carry a fork cap wrench for these HERE

  • Order the quantity required for your fork service. Most motorcycles use two fork caps.
  • Always compare thread size, fork size, and original part number before ordering.
Read More
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Check the listed model and year, then read any fitment notes in the description.

Make Model Year
Honda CB750K Standard 1969
Honda CB750K 1970
Honda CB750K 1971
Honda CB750K 1972
Honda CB750K 1973
Honda CB750K 1974
Honda CB750K 1975
Honda CB750K 1976
Honda CB750K 1977
Honda CB750K 1978
Honda CB750F Supersport 1975
Honda CB750F 1976
Honda CB750F 1977
Honda CB750F 1978
Honda CB750A Hondamatic 1976
Honda CB750A 1977
Honda CB750A 1978
Honda CB550K0 1974
Honda CB550K1 1975
Honda CB550K2 1976
Honda CB550K3 1977
Honda CB550K4 1978
Honda CB550F1 1975
Honda CB550F2 1976
Honda CB550F3 1977
Honda CB500T Twin 1975
Honda CB500T Twin 1976
Honda CB450K3 1970
Honda CB450K4 1971

Free ground shipping over $50

To the USA & Canada. In-stock orders usually ship from our own warehouse the same or next business day.

Estimated ground delivery after your order ships
DestinationDelivery time
USA4–7 business days
Canada2–6 business days

Ground shipping includes tracking, emailed when your order ships. Need it sooner? Express options are available at checkout.

See full shipping details

60-day returns on eligible parts

No restocking fees. Eligible parts must be unused, uninstalled, unaltered and complete. The 60-day window starts when your order is delivered.

Electrical parts are excluded from standard returns. Check return eligibility.

Start your return below. Wait for our instructions before mailing a part back.

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Other shipping options

Canada Post Economy: Available at checkout for select small items. Allow 1–3 weeks for delivery. No tracking or insurance is included.

Outside the USA & Canada: Delivery times vary by destination and shipping method. Buyers are responsible for applicable duties, taxes and import fees. We cannot mark orders as gifts.

Frequently Asked Questions

What are the fork-top cap dimensions?

The cap is for the listed 35mm forks and uses an M28 x 1.5 thread.

How many fork-top caps and O-rings are included and required?

One fork-top cap with one sealing O-ring is included. Two caps are required to replace both fork-leg caps on one motorcycle.

Which Honda OEM number does the fork-top cap replace?

The cap replaces Honda OEM 90123-300-000.

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